1000+ General Physics MCQ for FCI Recruitment [Solved]

1. A pressure gauge for fluids is called
A. a hydrometer
B. a manometer
C. a lactometer
D. an anemometer
Answer : B

2. The star nearest to the sun is
A. Proxima Centauri
B. Sirius
C. Aldebaran
D. Vega
Answer : A

3. Isotones are species of atoms containing
A. same number of protons but different number of neutrons
B. same number of neutrons but different number of protons
C. the same total number of protons and neutrons
D. same number of protons and different number of electrons
Answer : B

4. The ballistic missile, Agni 11, tested by India has a maximum range of
A. 1000 km
B. 1500 km
C. 2000 km
D. 500 km
Answer : C

5. If a bar magnet is broken into two pieces
A. both pieces will lose their magnetism
B. one piece will have North Pole on both ends and the other South Pole on its both ends
C. each will remain a magnet with North Pole at one end and South Pole at the other
D. the longer piece will behave as a bar magnet while the smaller will have no magnetism at all
Answer : C

6. The rings of Saturn were discovered by
A. Galileo
B. Bhaskara
C. Aryabhatta
D. Ptolemy
Answer : A

7. The radiator in a car serves to
A. cool the engine
B. heat up the engine
C. start the car
D. moderate the speed
Answer : A

8. Air escaping rapidly from a narrow orifice in an inflated tyre feels cool because
A. the speed with which it escapes cools it down
B. of the higher temperature of the surroundings
C. of sudden expansion causing loss of internal energy
D. there is no real fall in temperature
Answer : C

9. When the resistance of a circuit increases the current will
A. increase
B. decrease
C. remain the same
D. None of the above
Answer : B

10. A bolometer is used to measure
A. the quantity of heat energy in a body
B. thermal radiations quantitatively
C. high temperature
D. the intensity of sound
Answer : B

11. The function of a moderator in a nuclear reactor is
A. to absorb unwanted neutrons
B. to slow down the fast neutrons to secure more effective hits on other nuclei
C. to decrease the number of fissile nuclei
D. to increase the number of fissile nuclei
Answer : B

12. A solar eclipse occurs when the earth, the sun and the moon are in a straight line, and
A. when the moon passes between the sun and the earth
B. when the sun comes between the earth and the moon
C. when the earth comes between the sun and the moon
D. on a full moon day
Answer : A

13. When a ship floats on water, the weight or water displaced is
A. an indeterminate quantity
B. equal to the weight of the ship
C. greater than the weight of the ship
D. less than the weight of the ship
Answer : B

14. It is easier to climb down a staircase than climb up because in climbing down
A. work is done against gravity
B. the steepness of the staircase isn't felt
C. gravity assists
D. there is no friction between the legs and steps
Answer : C

15. The mode of travel of heat energy from the sun across the empty space beyond the earth's atmosphere is known as
A. conduction
B. convection
C. radiation
D. absorption
Answer : C

16. Primary colours are
A. colours of the rainbow
B. colours in the spectrum of white light
C. colours which cannot be produced by mixing other colours
D. colours found in nature
Answer : C

17. The filament lamp is an example for
A. fluorescence
B. incandescence
C. both (a) and (b)
D. None of these
Answer : B

18. When a bullet is fired from a gun
A. the gun moves forward
B. the gun jumps up
C. the gun does not move
D. the gun recoils with the same momentum as the bullet
Answer : D

19. The SI unit of electric current is
A. the ampere
B. the volt
C. the ohm
D. the coulomb
Answer : A

20. Compared to the atomic bomb, the destructive power of a hydrogen bomb is
A. greater
B. less
C. equal
D. can't be determined
Answer : A

21. We cannot see and without the aid of a telescope
A. Neptune and Pluto
B. Jupiter and Saturn
C. Venus and Mars
D. Venus and Saturn
Answer : A

22. The colour of a star is an indication of its
A. distance from the earth
B. age
C. temperature
D. size
Answer : C

23. The brightest star visible to the naked eye is
A. Sirius
B. Vega
C. Rigel
D. Proxima Centauri
Answer : A

24. When a bowler spins a ball, it changes its direction in the air. This is due to
A. turbulence caused by the wind
B. buoyancy of air
C. unequal pressures acting on it
D. sudden change in the direction of the wind
Answer : C

25. The asteroids belt lies between the orbits of
A. Earth and Mars
B. Venus and Earth
C. Mars and Jupiter
D. Moon and Mars
Answer : C

26. Ultrasonic waves are used
A. in medical and surgical diagnosis
B. in testing the quality of the linings and pads used in vehicles and aircraft brakes
C. to clean surgical instruments, jewellery and similar articles
D. All the above
Answer : D

27. Acoustics is a property or
A. Physics
B. Chemistry
C. Biology
D. Economic
Answer : A

28. A piece of ice is Boating In water kept in a beaker. When all the ice melts the level of water will
A. first rise and then fall
B. fall
C. remain the same
D. rise
Answer : C

29. The first Indian Satellite launched from a Russian Cosmodrome on April 16, 1975 was named
A. Bhaskara
B. Insat I-A
C. Aryabhatta
D. SLV-l
Answer : C

30. An astronomical unit of distance is
A. a kilometre
B. light year
C. the average distance from the earth to the sun
D. None of the above
Answer : C

31. The temperature, surface features, length of days and nights of a planet depend on
A. its atmosphere
B. its distance from the sun
C. its rotation
D. All the above
Answer : D

32. The Space Application Centre for training in Satellite Communication Technology is located at
A. Bangalore
B. Mumbai
C. Ahmedabad
D. New Delhi
Answer : C

33. You want a supply of a small but constant current. Which of the following cells will you prefer?
A. Daniell cell
B. Leclanche cell
C. Dry cell
D. All the above
Answer : A

34. For accurate scientific work, temperatures are often measured by
A. mercury thermometers
B. alcohol thermometers
C. platinum resistance thermometers
D. thermoelectric thermometers
Answer : C

35. A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will
A. increase
B. decrease
C. remain unaffected
D. have its shape changed
Answer : A

36. Mercury is used in thermometers because
A. it has high thermal conductivity
B. it has uniform expansivity
C. it has high boiling point and low freezing point
D. of all the above
Answer : D

37. A spherical mirror is
A. a reflecting elliptical portion
B. a reflecting spherical surface
C. a parabolic reflecting surface
D. a flat reflecting surface
Answer : B

38. Velocity of sound in high altitudes is low because at such a height
A. the temperature is low
B. there is no air
C. the pressure is low
D. All the above
Answer : A

39. When light passes from air to glass, its velocity in glass
A. increases
B. decreases
C. remains unchanged
D. first decreases then increases
Answer : B

40. When an electric bulb breaks, there is an explosive sound. That is due to
A. the chemical reaction between the gases inside the bulb
B. the compressed gases inside rushing out suddenly
C. the air outside rushing in to fill the vacuum inside the bulb
D. None of the above
Answer : C

41. The maximum range of most TV signals is from 121 to 240 km only because
A. the curvature of earth limits the range of reception
B. the signals are weak
C. the signals are absorbed by air
D. the antennae are not powerful enough
Answer : A

42. The heating element often used in an electric iron is
A. copper
B. tungsten
C. mica
D. nichrome
Answer : D

43. Why is nuclear fusion also known as thermonuclear reaction?
A. Fusion converts nuclear energy into heat
B. Fusion demands conditions of extremely high temperature to produce it
C. Fusion produces large amount of heat
D. Fusion reactions takes place in the sun
Answer : B

44. A timer in a race is at the finish line. He should start his stop watch
A. as soon as he hears the report of the gun
B. the moment he sees the flash
C. either (a) or (b) since that makes no difference
D. None of the above
Answer : B

45. Increase in pressure
A. has no effect on the boiling point of a liquid
B. raises the boiling point of a liquid
C. lowers the boiling point of aliquid
D. increases the volume of a liquid
Answer : B

46. The method used to separate aluminium from a alumina is
A. electroplating
B. electrotyping
C. electrolysis
D. distillation
Answer : C

47. The device used to record the sound is
A. a microphone
B. a headphone
C. a phonograph
D. an amplifier
Answer : C

48. The best estimates of the age of the earth comes from the studies of
A. angle of inclination of the earth
B. changes in radio-active minerals in it
C. period taken by Sun's light to reach the earth
D. artificial satellites revolving round the earth
Answer : B

49. Enriched uranium means
A. Uranium that is very pure
B. Uranium in which the concentration of the isotope U-238 is more than in the naturally occuring uranium
C. Uranium in which the concentration of the isotope U-235 is more than in the naturally occuring uranium
D. None of the above
Answer : C

50. A star contains
A. about 75% of hydrogen
B. 22% helium
C. traces of most other elements including oxygen, neon, carbon and nitrogen
D. All the above
Answer : D